123477793 has 2 divisors, whose sum is σ = 123477794. Its totient is φ = 123477792.

The previous prime is 123477791. The next prime is 123477797. The reversal of 123477793 is 397774321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112508449 + 10969344 = 10607^2 + 3312^2 .

It is a cyclic number.

It is not a de Polignac number, because 123477793 - 2¹ = 123477791 is a prime.

Together with 123477791, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (123477791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61738896 + 61738897.

It is an arithmetic number, because the mean of its divisors is an integer number (61738897).

Almost surely, 2^123477793 is an apocalyptic number.

It is an amenable number.

123477793 is a deficient number, since it is larger than the sum of its proper divisors (1).

123477793 is an equidigital number, since it uses as much as digits as its factorization.

123477793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 222264, while the sum is 43.

The square root of 123477793 is about 11112.0562003618. The cubic root of 123477793 is about 497.9620958447.

The spelling of 123477793 in words is "one hundred twenty-three million, four hundred seventy-seven thousand, seven hundred ninety-three".